/*
 * Visitor.java
 *
 * Created on May 5, 2007, 6:33 PM
 *
 *  Life Logger v1.0
    Copyright (C) 2007  Anand Kishore (anand@semanticvoid.com)
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package com.semanticvoid.lifelogger.html.parser;

import org.htmlparser.Tag;
import org.htmlparser.Text;
import org.htmlparser.visitors.NodeVisitor;

/**
 *
 * @author anand kishore
 */
public class Visitor extends NodeVisitor {

    StringBuffer content;
    boolean flag = false;

    public Visitor() {
        content = new StringBuffer();
    }

    public void visitStringNode(Text string) {
        if(flag == false) {
            String token = string.toPlainTextString();
            
            // Replace the sequence starting with & and ending with ; by a space
            token = token.replaceAll("&(.)*;"," ");
            
            content.append(" " + token + " ");
        }
    }

    public void visitTag(Tag tag) {
        if(tag.getTagName().equalsIgnoreCase("STYLE") || tag.getTagName().equalsIgnoreCase("SCRIPT")) {
            flag = true;
        }
    }

    public void visitEndTag(Tag tag) {
        if(tag.getTagName().equals("STYLE") || tag.getTagName().equalsIgnoreCase("SCRIPT")) {
            flag = false;
        }
    }

    public String getContent() {
        return content.toString();
    }
}

